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JEE Advanced2009Chemistryp Block Elements (Group 15, 16, 17 & 18)Actual

The reaction of P₂ with X leads selectively to P ₄ O ₆ . The X is

Options

  1. Adry O ₂
  2. Ba mixture of O ₂ and N ₂
  3. Cmoist O ₂
  4. DO ₂ in the presence of aq. NaOH

Correct answer

B. a mixture of O ₂ and N ₂

Step-by-step solution

White phosphorus on reaction with limited supply of oxygen gives lower oxide P₄ O ₆ . Therefore, air ( O ₂+ N ₂ ) is a good source for controlled supply of oxygen and the best choice for controlled oxidation of white phosphorus into lower oxide P ₄ O ₆ .

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